Unsinkable ship.



P..J. oAHLL.

UNSINKABLB SHIP. APPLICATION FILED MAR.14, 1914.

Patented Mar. 30, 1915.

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Ime/Mofo P.J. GAHILL. UNSI'NKABLB SHIP. PPLLOTION P ILBD 111111.14, 1914.

1,1 33,928. Patented Mar. 30, 1915.

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PATRICK Il". GHILL, UF UTICA, NEW YGRK.

UNSINK/LBLE SHIP.

adsense.

Specification of Letters Patent.

Patented Mai. so, 1ers',

Application filed ltarch le, 1914. Serial No. 824,732.

To all whom it may concern:V

Be it known that I, PATRICK J. CAHILL, a citizen of the United States, residing at Utica, in the county of Oneida and Stateof New York, have invented new and useful Improvements in Unsinkable Ships, of which the following is a specification.

This invention relates to ships, the object of the invention being to provide a ship or marine vessel the construction of'which will prevent the ship from sinking when the hull springs a leak from any source whatever, the ship embodying a novel construction including series of air tight chambers which are thrown into operation automatically as lthe hull starts to sink or is submerged beyond its normal line.

lilith the above and other objects in view,v

the invention consists in the novel construc tion, combination and arrangement of parts, as will be hereinafter more fully described, illustrated and claimed.

In the accompanying drawings Figure i i is a vertical longitudinal section through a ship embodying the present invention. Fig. 2 is a vertical cross section through the same. Fig. 3 is a horizontal section taken through the side air chambers. Fig. d is a bottom plan view of the ship. Fig. 5 is a detail vertical transverse section showing a modified arrangement of the side air compartments.

The hull l of the ship may be of any size and general shape and construction but in carrying out the present invention, series of side air chambers 2 are extended along the opposite sides of the hull, each of said series being subdivided into separate and independent air chambers or compartments so that in case one or more of said air chambers or compartments should become punc- .tured or injured in such a way as to admit water, the remaining air chambers or compartments will remain intact so as to perform the function for which they are designed. Each compartment of each series is formed in the bottom 3 thereof with a suitable number of water intake ports et, the said ing normally slightly below the 'water line as indicated in Figs. 2 and 5 so that as soon as the ship starts tosink, said ports 4. will be sealed by the water and only sufficient water admitted to compress the air con-y tained in all of the air chambers 2. Another series of air chambers 5 extend lengthwise of the ship just beneath the lower deck 6 thereof, the chambers or compartments of the series 5 being also separate and independent for the same purpose as the cham-- bers or compartments 2 of the lateral or side series of air chambers. In addition to the series 2 and 5 of air chambers hereinabove described, another bottom series `7 may be employed saidl series being likewise coml posed of separate and independent air tight Y compartments each of which is provided in charge, pipe 9 leading therefrom and formed with any desired number of branches 10 and .11 leading to the desired series of air cham bers, preferably the top and bottom seris' 5 and 7 as illustrated in Fig. 2. The air..

compressor is employedtoexpel from the air chambers any water which may have 0btained access thereto so that said air chambers may contain the necessary amount of air to 4float the hull of the vessel which would otherwisebe unable to maintain its flotation on the surface of the water.

.From the foregoingidescription taken in connection with the accompanying drawings it will now lbe understood that when the hull of the vessel springs a leak from any cause and the hull starts to sink below its normal level, the water intake ports 4 and 8 admita certain amount of water into the air chambers or compartments referred to thereby compressing the air contained therein until the hull is supported, it being impossible for any more water to enter the said air chambers or compartments. 'Ihel arrangement described not only provides for preventing the vessel from sinking but also for preserving the equilibrium of the vessel and Vmaintaining the same on an even keel until the' ing'ury to the hull of the vessel may be repaired or the vessel towed into port. The air compressor should preferably be located on the deck of the vessel so as not to be put out of commission in case the vessel becomes partially submerged or sun-k.

lll/That I claim is'- A ship comprising an inverted dome shaped body forming the main hull thereof, oppositely arranged vertical sides formed 'in continuation of said dome shaped body ed to project entirely below vthe water line' of the vessel, said downwardly inclined bottoms being formed with a plurality of water intake ports, said side compartments being air tight, and a series of air tight compartments formed continuously underneath the deck of the vessel and disposed Hush with the upper ends of the side compartments, 15 lsaid last namedV a1r compartments adapted to receive compressed air.

In testimony wherof I ailix my slgnature 1n presence of two witnesses.

PATRICK J. CAHILL'.

Witnesses W. STEWART ANDERSON, Y JAMES F. CAHILL. 

